77770448700432 has 80 divisors (see below), whose sum is σ = 212731627822272. Its totient is φ = 24397817794560.

The previous prime is 77770448700419. The next prime is 77770448700457. The reversal of 77770448700432 is 23400784407777.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25231932 + ... + 28145892.

Almost surely, 2^{77770448700432} is an apocalyptic number.

It is an amenable number.

77770448700432 is an abundant number, since it is smaller than the sum of its proper divisors (134961179121840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77770448700432 is a wasteful number, since it uses less digits than its factorization.

77770448700432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946696 (or 2946690 counting only the distinct ones).

The product of its (nonzero) digits is 51631104, while the sum is 60.

The spelling of 77770448700432 in words is "seventy-seven trillion, seven hundred seventy billion, four hundred forty-eight million, seven hundred thousand, four hundred thirty-two".